ensure consistent animations test set for performance assessment

[theashraf]

For better performance assessment, I think we should avoid randomizing the animations test set we use. We should ensure it is consistent across all players because, as far as I understand, not all animations have the same features, which might impact performance

[hermet]

The test tool allows users to use a random seed to reproduce the same contents set. they can copy & paste it, if they'd like to compare them.

[tinyjin]

We can keep same test set with the queryparameter seed. Thanks, I'm closing this issue :)